Ash-sifter



LAWRENCE F. `1F.RAZEE, 0F TOTTENVILLE, NEW YORK.

VSpecification of Letters Patent No. 31,709, `dated March '1.9, 1861.

To all `whom 'it 'may concern:

Be it known that I, LAWRENCE F. FRAZEE, of Tottenville, in the county of Richmond and State of New York, have invented a 'certain Improvement `in Ash- Sifters, the

construction and operation of which I have described in the following specication and illustrated in its accompanying drawings with sufficient clearness to enable competent and skilful workmen in the arts to which it pertains or is most nearly allied to make and use my invention.

My said invention consists in hanging the sieve through which the ashes are to be sifted, upon links or connecting rods attached to a xed support, the attachment of the sieve to the links being made above the fixed support, instead of below as heretofore, the'parts being so arranged that the descent of the sieve from the central position to the extremity of the vibration in either direction shall have a strong tendency to create a more forcible concussion than would be realized by hanging the sieve to the links below their attachment to the fixed support, thereby by means of the said concussion producing a more violent agitation of the ashes' in the sieve and consequently a more eflicient and rapid separation of the ashes from the coal than would be produced by the swinging motion heretofore em ployed, substantially as set forth.

In the accompanying drawings Figure 1 is a plan of my improved ash sifter with the cover removed as it would be preparatory to pouring in the ashes for sifting. Fig. 2 is a. longitudinal sectional elevation showing the parts beyond the center in Fig. 1, certain parts being broken away to show the links upon which the sieve is supported.

1 is the under portion of the box, the exact form and construction of which is not of very great importance as several forms will answer the purpose. This unites by a joint at 2 with the sides and ends 3 and 4, which constitute a portion of the upper casing in which the sifting parts are inclosed.

5 is the cover, which is removable to allow the, introduction of the ashes for the purpose of sifting, and the removal of the coal after the ashes have been separated. -It may be hinged to the sides if desired.

6 is the sieve constructed in the usual manner and of proper neness to make the proper separation. It is tted into the bottom of the box 7 which with it constitutes the receptacle into which the ashes 4.are put' for sifting. It issupported and strengthcned at `the top by a rim 8. This "box is iremovably supported in the frame '9, upon which the rim 8 rests, and when the ashes have been separated the box of which the sieve forms a bottom may be removed for the purpose of emptying the coals from it. The frame 9 is supported upon the links 10,

10,.which are shown in Fig. 2, the sides of' the box 7 being in this figure broken away to allow this representation. These links are pivoted at 11, 11, to the rail 12 which is permanently attached to the side 3 of the outer casing. 'The frame 9, is connected to these same links 10, 10, by the pivots or pins 18, 13, the mortises in the supporting rails and frame being so made as to allow the necessary vibration of the sifting box.

It will be observed that the frame 9 is connected to links 10, 10, above 'and not below the `lixed points at which these links are supported. The motion of the sieve is checked at the ends of the stroke by the end pieces` of the frame 9, striking against the ends 4 of the box or outside casing, or stops may be attached to the sides of this box for the same purpose if deemed preferable. Motion is imparted to the sieve to separate the ashes, by means of the bent lever 14, which is hung at the point 15, to supports attached to the ends of the box.

As before intimated, when the ashes have been sifted, the sieve and box 7 can be taken out and the coals removed, and after it is replaced the upper Vportion or cover may be removed, the lower part 1, forming the ash box, taken away and the ashes emptied out. 1G, 16, are handles by which the ash sifter can be conveniently removed :from one place to another or the ash box carried away.

The construction and arrangement of the parts are such that by making the outside cover of neat materials and finish, and upholstering the cover, a very respectable ottoman for the parlor may be made of it.

l -am aware that there have been ash sifters in which the sieve, or frame in-which it was supported was hung upon links or connecting rods, the attachment of the sieve or the frame in which it was supported being made below the fixed point or pivot upon which the said links were themselves supported. The effect of this arrangement is not however satisfactory as the acceleration of gravity retards the mo-tion of the sifter toward the ends of the strokes, and unless great violence is used in completing the motion, the necessary effect fails to be produced, but in my machine,`vvith the sieve supported above the point of suspension of the links, the acceleration of gravity favors instead of hindering a rapid motion at the end of the stroke thereby giving a very vio.- lent concussion as the frame 9 strikes against the ends of the box, and by this means separating the ashes with very little trouble. I do not claim broadly, suspending the sieve of the ash sifter upon links.

The particular improvement in ash sitters Which I claim as constituting my said inveni5 fixed point of support for the links being 20 below the points or pivots which connect them to the sieve frame substantially as and for the purpose set forth.

LAWRENCE F. FRAZEE.

Witnesses H. JAMES VVEsToN, Trios. P. How. 

